Where in the prostate are stromal tumors of uncertain malignant potential (STUMP) found?

Updated: Jan 04, 2021
  • Author: Fabio R Tavora, MD, PhD; Chief Editor: Liang Cheng, MD  more...
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Answer

Answer

Stromal tumors of uncertain malignant potential (STUMP) arise in the specialized stroma of the prostate and do not seem to display any zonal predilection. Both transitional zones and peripheral zones of the prostate have been reported to contain these lesions, predominantly the latter. [12] A case of an extraprostatic STUMP has been reported. [17] A heterogeneous midline mass extending from the prostate base is sometimes seen by ultrasound examination. [20]


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